Finite temperature phase diagram of a polarized Fermi gas in an optical lattice

Abstract

We present phase diagrams for a polarized Fermi gas in an optical lattice as a function of temperature, polarization, and lattice filling factor. We consider the Fulde-Ferrel-Larkin-Ovchinnikov (FFLO), Sarma or breached pair (BP), and BCS phases, and the normal state and phase separation. We show that the FFLO phase appears in a considerable portion of the phase diagram. The diagrams have two critical points of different nature. We show how various phases leave clear signatures to momentum distributions of the atoms which can be observed after time of flight expansion.

Journal version

References in corpus (28)

• Cold bosonic atoms in optical lattices
• Pairing and Phase Separation in a Polarized Fermi Gas
• Fermionic Superfluidity with Imbalanced Spin Populations and the Quantum Phase Transition to the Normal State
• Inhomogeneous Superconductivity in Condensed Matter and QCD
• Probing many-body states of ultra-cold atoms via noise correlations
• Spatial quantum noise interferometry in expanding ultracold atom clouds
• Observation of Phase Separation in a Strongly-Interacting Imbalanced Fermi Gas
• Interior Gap Superfluidity
• Evidence for Superfluidity of Ultracold Fermions in an Optical Lattice
• Direct Observation of the Superfluid Phase Transition in Ultracold Fermi Gases
• BEC-BCS crossover in "magnetized" Feshbach-resonantly paired superfluids
• Phase separation in asymmetrical fermion superfluids
• Molecules of Fermionic Atoms in an Optical Lattice
• Deformation of a Trapped Fermi Gas with Unequal Spin Populations
• BEC-BCS crossover, phase transitions and phase separation in polarized resonantly-paired superfluids
• Finite temperature phase diagram of a polarised Fermi condensate
• Direct Imaging of Spatially Modulated Superfluid Phases in Atomic Fermion Systems
• Probing the excitation spectrum of a Fermi gas in the BCS-BEC crossover regime
• Strongly interacting Fermi gases with density imbalance
• Generic Phase Diagram of Fermion Superfluids with Population Imbalance
• Sarma Phase in Trapped Unbalanced Fermi Gases
• LOFF Pairing vs. Breached Pairing in Asymmetric Fermion Superfluids
• Non-standard pairing in asymmetric trapped Fermi gases
• Superfluid phase diagrams of trapped Fermi gases with population imbalance
• Fermion pairing with spin-density imbalance in an optical lattice
• Breached Superfluidity via P-Wave Coupling
• Fermion Cooper Pairing with Unequal Masses: Standard Field Theory Approach
• Ultracold polarized Fermi gas at intermediate temperatures

Cited by in corpus (74)

• Quasi-one-dimensional polarized Fermi superfluids
• The Fulde-Ferrell-Larkin-Ovchinnikov state for ultracold fermions in lattice and harmonic potentials: a review
• Thermal, electric and spin transport in superconductor/ferromagnetic-insulator structures
• Route to Observable Fulde-Ferrell-Larkin-Ovchinnikov Phases in 3D Spin-Orbit Coupled Degenerate Fermi Gases
• Large Range of Stability of Larkin-Ovchinnikov States for Imbalanced Fermi Gases in Optical Lattices
• FFLO state in 1, 2, and 3 dimensional optical lattices combined with a non-uniform background potential
• Competing superfluid orders in spin-orbit coupled fermionic cold atom optical lattices
• Stable Fulde-Ferrell-Larkin-Ovchinnikov pairing states in 2D and 3D optical lattices
• Superfluid-insulator transitions of the Fermi gas with near-unitary interactions in a periodic potential
• Probing the FFLO phase by double occupancy modulation spectroscopy
• Physics of ultracold Fermi gases revealed by spectroscopies
• Fulde-Ferrell states and Berezinskii-Kosterlitz-Thouless phase transition in two-dimensional imbalanced Fermi gases
• Fulde-Ferrell-Larkin-Ovchinnikov Phases in Two-dimensional Spin-Orbit Coupled Degenerate Fermi Gases
• Phase diagram, extended domain walls, and soft collective modes in a three component fermionic superfluid
• Topological Fulde-Ferrell Superfluids of a Spin-Orbit Coupled Fermi Gas
• Finite temperature stability and dimensional crossover of exotic superfluidity in lattices
• Exotic superfluid states of lattice fermions in elongated traps
• Polarized Superfluidity in the imbalanced attractive Hubbard model
• Fulde-Ferrell-Larkin-Ovchinnikov pairing as leading instability on the square lattice
• Induced interactions for ultracold Fermi gases in optical lattices
• Phase separation in imbalanced fermion superfluids beyond mean-field
• Resonant enhancement of the FFLO-state in 3D by a one-dimensional optical potential
• Non-local quantum fluctuations and fermionic superfluidity in the imbalanced attractive Hubbard model
• Controlling the pair momentum of the FFLO state in a 3D Fermi gas through a 1D periodic potential
• Population imbalanced lattice fermions near the BCS-BEC crossover: II. The FFLO regime and its thermal signatures
• Quantum phases of Fermi-Fermi mixtures in optical lattices
• Strong coupling s-wave superconductors in the extreme Pauli limit: I.The breached pair and metastable FFLO phases
• Population imbalanced lattice fermions near the BCS-BEC crossover: I.The breached pair and metastable FFLO phases
• Population imbalanced fermions in harmonically trapped optical lattices
• Fulde-Ferrell--Larkin-Ovchinnikov state in the dimensional crossover between one- and three-dimensional lattices
• Realizing Fulde-Ferrell Superfluids via a Dark-State Control of Feshbach Resonances
• Collective modes and the speed of sound in the Fulde-Ferrell-Larkin-Ovchinnikov state
• Fulde-Ferrell Superfluids without Spin Imbalance in Driven Optical Lattices
• Spin-Imbalanced Pairing and Fermi Surface Deformation in Flat Bands
• Noise correlations of the ultra-cold Fermi gas in an optical lattice
• Correlation Effects on Atom Density Profiles of 1-D and 2-D Polarized Atomic-Fermi-Gas Loaded on Optical Lattice
• Superfluid phases of fermions with hybridized $s$ and $p$ orbitals
• Phases of attractive spin-imbalanced fermions in square lattices
• Spin-Imbalanced Fermi Superfluidity in a Lieb Lattice Hubbard Model
• Larkin-Ovchinnikov superfluidity in a two-dimensional imbalanced atomic Fermi gas
• Dimensional Crossover in a Spin-imbalanced Fermi gas
• Larkin-Ovchinnikov phases in two-dimensional square lattices
• Superfluidity of a spin-imbalanced Fermi gas in a three-dimensional optical lattice
• Formation of Cooper pairs between conduction and localized electrons in heavy-fermion superconductors
• Triplet FFLO Superconductivity in the doped Kitaev-Heisenberg Honeycomb Model
• Temperature Effects in a Fermi Gas with Population Imbalance
• Polarized superfluid state in a three-dimensional fermionic optical lattice
• Topological Uniform Superfluid and FFLO Phases in 3D to 1D crossover of spin-orbit coupled Fermi gases
• Synthetic-gauge-field-induced resonances and Fulde-Ferrell-Larkin-Ovchinnikov states in a one-dimensional optical lattice
• LOFF and breached pairing with cold atoms
• Thermal transitions, pseudogap behavior and BCS-BEC crossover in Fermi-Fermi mixtures
• Re-entrant Fulde-Ferrell-Larkin-Ovchinnikov State in Small-Sized Superconductors
• FFLO order in ultra-cold atoms in three-dimensional optical lattices
• Magnetic phases of one-dimensional lattices with 2 to 4 fermions per site
• Orbital magnetism of ultracold fermionic gases in a lattice: dynamical mean-field approach
• Superfluid weight and Berezinskii-Kosterlitz-Thouless temperature of spin-imbalanced and spin-orbit-coupled Fulde-Ferrell phases in lattice systems
• Non-collinear order and gapless superconductivity in s-wave magnetic superconductors
• Spin-imbalanced ultracold Fermi gases in a two-dimensional array of tubes
• Multiple-quantized vortices in rotating LOFF state of ultracold Fermi superfluid gas
• Phase diagram of imbalanced fermions in optical lattices
• Interband physics in an ultra-cold Fermi gas in an optical lattice
• Polarized Fermi gases in asymmetric optical lattices
• Magnetism of quantum dot clusters: A Hubbard model study
• Competition between the Fulde-Ferrell-Larkin-Ovchinnikov phase and the BCS phase in the presence of an optical potential
• Thermally induced coherence in a Mott insulator of bosonic atoms
• Collective excitations of an imbalanced fermion gas in a 1D optical lattice
• Thermodynamics and spin-charge separation of one-dimensional strongly repulsive three-component fermions
• Anomalous pseudogap in population imbalanced Fermi superfluids
• Pairing properties of an odd-frequency superfluid Fermi gas
• Temperature tuned Fermi surface topology and segmentation in non-centrosymmetric superconductors
• Bose condensation of interacting gases in traps with and without optical lattice
• Superfluid gap formation in a fermionic optical lattice with spin imbalanced populations
• Finite momentum condensate brought on by Zeeman field
• Novel dynamical excitations and roton-based measurement of Cooper-pair momentum in a two-dimensional Fulde-Ferrell-Larkin-Ovchinnikov superfluid on optical lattices